Servidores DNS Principal (mname) y Secundario (rname)
host: mrse.com.ar
class: IN
ttl: 1828
type: SOA
mname: dns1.mrse.com.ar
rname: tasamail.telefonica.com.ar
serial: 2017021712
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 86400

Servidor de Correo
host: mrse.com.ar
class: IN
ttl: 86400
type: MX
pri: 10
target: mail.mrse.com.ar

Información TXT
host: mrse.com.ar
class: IN
ttl: 86400
type: TXT
txt: v=spf1 ip4:200.51.215.0/24 ~all
entries: Array